Published online by Cambridge University Press: 19 December 2017
Melaphis rhois Fitch (Hemiptera: Aphididae) has been considered the only North American representative of the aphid subtribe Melaphidina. Molecular and morphometric analysis indicates that there are at least three sympatric cryptic melaphidine species in North America. Melaphis asafitchinew species is described and M. rhois is redefined and a neotype designated. The name Melaphis minuta Baker cannot be assigned to either of these species. Details of the life cycles of Melaphis Walsh species, including the existence of ovoviviparity in sexual females, is discussed.
Subject editor: Amanda Roe